“They dont have it all wrong, they just dont understand what they are doing, that the need for sacrifices are over.”
With respect to your beliefs, even your own scripture says that “not one jot or tittle of the Law” (i.e. the Torah, the 5 Books of Moses) shall be changed until it’s whole purpose shall have been accomplished. Matthew 5:18. Yet...early Christians changed the Sabbath, eliminated other Holy days and dispensed with the dietary laws, all of which Jesus himself observed.
So WHO doesn’t understand what they’re doing?
Oh, and FYI, there are currently no sacrifices because there is no Holy Temple. Once the Messiah comes, it will be rebuilt and the sacrifices restored. Until that time, we Jews offer a permissible sacrifice by praying 3 times daily.
That is what Passover is a illustration of.
The changes from the Law was because it was fulfilled and in this period of time, (since the Cross) when a person believes in Christ as their personal savior they cease to be either Jew or Gentile, but become one in Christ-Christian.
So, no you don't understand what you are doing, you have rejected your own messiah and returned to the Law which cannot save you!
I would advise you to read the book of Hebrews which was written by Paul to the Jews to explain to them these things.
But God isn't done with the Jews People as a People, since there were unconditional promises made to Abraham (land) and David (ruler) which God will fulfill in the future when He sets up His Millennial Kingdom.
Then all Israel will be saved under the New Covenant (Jer.31, Heb.8)
But right now, without faith in Christ as your personal savior, you are lost and on the way to hell.
Your laws and traditions can't save you, only the Blood of the Lamb can do that.